Round-top work



J. RUOFF.

ROUND TOP WORK.

me/mow HLED 05c. 29, 1919.

Patented Apr. 20, 1920.

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JOHN RUOFF, OF NEW ALBANY, INDIANA, ASSIGNOR TO INDIANA VENEER AND PANEL COMPANY, OF NEW ALBANY, INDIANA, A CORPORATION OF INDIANA.

ROUND-TOP WORK.

Specification of Letters Patent. Patented Apr. 20, 1920.

Application filed December 29, 1919. Serial No. 348,024.

To all whom it may concern:

Be it known that I, J OHN Know, a citizen of the United States, residing at New Albany, in the county of Floyd and State of Indiana, have invented certain new and useful Improvements in Round-Top \Vork, of which the following is a specification.

This invention relates to improvements in round top work, and is applicable particularly to table tops and related structures, and more particularly to that class known as rim bound. Round top work is usually constructed in two semi-circular portions, or halves and the term top, as used herein, refers to such a portion.

In work of this character, a blank is constructed by applying layers of veneer to both sides of a core which consists of a plurality of strips of inferior wood, glued together, edge to edge. From this blank a semi-circular form is out. The ends of the strips show around the greater part of the curved edge of this form, and as it is practically impossible to finish end wood, a strip of veneer is glued to the curved edge. In this way a top having a square edge is formed which is known as a plank top. When a top with a molded edge is wanted, a method usually used is to steam a strip of suitable wood and bend it to conform to the curved edge and then secure it thereto thereby providing edge wood around the entire circle. This method is not completely satisfactory as if the grain of the applied strip is wavy the fibers will be severed at different points about the circle, and as they are under a strain, due to the bending, are apt to rough up, thereby marring the finish.

An object of this invention is to provide a rim bound top, the edge of which may be molded, and which will take a high polish.

A further object is to construct round top work of superior quality and at a lessened cost as compared with other methods.

The invention consists of the novel features of construction hereinafter described, and illustrated in the accompanying drawing, which forms a part of this specification, wherein is set forth an embodiment of the invention, but it is to be understood that vided with tongues 15.

such changes and modifications maybe re.- sorted to as come within the scope of the claims appended hereunto.

In the drawing, in which like reference characters designate like parts in the several views, Figure 1, is a plan view of a blank from which a top isformed: Fig. 2, a plan view of a core for a blank: Fig. 3, an elevation of the straight edge of a top: Fig. 4c, a plan view of the upper surface of a portion of a finished top and Fig. 5, a radial section of a completed top.

Referring now in detail to the drawing. the reference numeral 10 designates a. blank, comprising a core -ll of strips 12 of inferior wood joined edge to edge. The core is cut on lines -13- to form a polygon, the sides 1l:- of which are pro- To the core, a rim 16- is applied. The rim consists of a plurality of strips -17- having a straight grain, which are applied to the sides 14, the strips having grooves 1S to fit over the ribs. A plurality of superimposed layers of veneer -20, 21-, are applied to both surfaces of the rim bound core, and are so placed that their grain crosses substantially at right angles, the grain of the inner veneers being arranged transversely of the grain of the strips composing the core. A cut is then taken on the semicircular line 22, the corners 23- of the rim strips falling off as waste. The top is then taken to a machine, and suitably molded as at 24. It will be observed that the line 22 deviates but slightly from the plane of the strips composing the rim, and that the fibers are under no strain. Practically continuous edge wood will present around the entire circle which will take a high finish, and as the fibers are under no strain, they'will not rough up.

Having thus described my invention so that those skilled in the art can make and use the same,

I claim:

1. A table top comprising a polygon shaped built up core, a plurality of straight grained strips applied to the sides of said polygon forming a rim thereabout, and a plurality of layers of veneer applied to both the sides of said polygon forming a rim faces of said core and rim. thereabout, applying veneer to both sides of 2. The method of making round top Work said core, and rim, and then cutting a top 10 which consists in forming a core comprising from the blank so formed, the line of sever- 5 a plurality of strips of Wood joined edge ance lying Wholly Within said strips and to edge, shaping said core to form a polygon, substantially parallel With the rain thereof. applying strips of straight grained wood to J O RUOF F. 

